Crown Rock–Gregory Canyon Trail, 3 sights is a 6.3-mile out-and-back in Boulder Open Space and Mountain Parks near Boulder, CO. It climbs 2,056 ft, with sections as steep as 27% grade, and is mostly dirt. It scores 28/100 on the Ambleway Wildness scale: green fringe.
Elevation
0 mi5,925 – 7,477 ft · steepest grade: 27%6.5 mi
Getting there
Trailhead: Flagstaff Trail 40.00238, -105.29526
Nearest town Boulder, CO
Directions
AMBLEWAYwww.ambleway.com
Crown Rock–Gregory Canyon Trail, 3 sights
6.3 mi · ▲ 2,056 ft · 3 hr 8 min
Elevation 5,925–7,478 ft
Out & Back · Boulder Open Space and Mountain Parks
Trailhead: Flagstaff Trail · 40.00238, -105.29526
Weather Sep 4: Mostly clear, high 86°F / low 66° · precip 6% · wind 6 mph · sunrise 6:33 AM · sunset 7:30 PM
Parking lot at the trailhead
- Start on Flagstaff Trail, heading W.
- 0.2 miSharp left onto Crown Rock, heading S.
- 0.3 miBear right onto Gregory Canyon Trail, heading SW.
- 1 miSharp left onto Green Mountain Lodge Road, heading SW.
- 0.2 miBear right onto Long Canyon Trail, heading S.
- 1.4 miReach Crown Rock, then turn around and head back the way you came.
- 1.4 miBear left onto Ranger Trail, heading NE.
- 0.2 miSharp right onto Gregory Canyon Trail, heading NW.
- 1 miBear left onto Crown Rock, heading SE.
- 0.3 miSharp right onto Flagstaff Trail, heading NW.
- 0.2 miArrive back at the trailhead.
Each distance is the walk from the previous step. Tap a step for a map of its junction.
Trail surface
87% dirt13% unspecified
Weather
Mostly clearTemperature 86°F66°
Precip6%Wind6 mphUV7Humidity22%
Rained 0.2″ 4 days ago
Hourly temperature
90°65°
Sunrise 6:33 AM12 AM3 AM9 AM12 PM3 PMSunset 7:30 PM
Sat
85°69°
Sun
81°58°
29%
Mon
82°62°
44%
Tue
79°57°
27%
Wed
78°56°
33%
Thu
86°60°
34%
Good to know
- Parking lot at the trailhead
More from Flagstaff Trail Trailhead
- Tour Stop 80–Amphitheater Trail, 8 sights 1.8 mi · ▲ 664 ft
- Crown Rock & Gregory Canyon Trail 2.7 mi · ▲ 1,202 ft
- 1st/2nd Flatiron–Amphitheater Trail, 5 sights 3.3 mi · ▲ 1,976 ft
- Royal Arch–Amphitheater Trail, 6 sights 3.7 mi · ▲ 1,964 ft
- Tour Stop 40–Amphitheater Trail, 8 sights 3.7 mi · ▲ 1,382 ft
- Viewpoint–Evert Pierson Kids' Fishing Pond, 4 sights 3.8 mi · ▲ 946 ft
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